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Mechanical Extraction and ACR/Hour
C.Roden 05 Apr 12 at 15:21	Hi All, I am trying to figure out how mechanical extraction affects the air change rate in a space? If I have a room say 10m3, and I want 5 air changes per hour I need to supply 50m3 per hour simple right? Now can say that if I were to add a extract fan that removed 25m3 per hour, could I reduce the supply to 25m3 per hour giving me a net of 50m3 per hour? Cheers, Colin
Roy Dowling 10 Apr 12 at 17:47	25cu m/h is 2.5 ac/h whether it be supply or extract or both.
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Mechanical Extraction and ACR/Hour

C.Roden
05 Apr 12 at 15:21

Hi All,

I am trying to figure out how mechanical extraction affects the air change rate in a space?

If I have a room say 10m3, and I want 5 air changes per hour I need to supply 50m3 per hour simple right?

Now can say that if I were to add a extract fan that removed 25m3 per hour, could I reduce the supply to 25m3 per hour giving me a net of 50m3 per hour?

Cheers,

Colin

Roy Dowling
10 Apr 12 at 17:47

25cu m/h is 2.5 ac/h whether it be supply or extract or both.

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